28984995 has 24 divisors (see below), whose sum is σ = 54106416. Its totient is φ = 14269248.

The previous prime is 28984987. The next prime is 28984997. The reversal of 28984995 is 59948982.

It is not a de Polignac number, because 28984995 - 2³ = 28984987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28984997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24189 + ... + 25358.

It is an arithmetic number, because the mean of its divisors is an integer number (2254434).

Almost surely, 2^28984995 is an apocalyptic number.

28984995 is a deficient number, since it is larger than the sum of its proper divisors (25121421).

28984995 is a wasteful number, since it uses less digits than its factorization.

28984995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49571 (or 49568 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The square root of 28984995 is about 5383.7714476007. The cubic root of 28984995 is about 307.1786847902.

The spelling of 28984995 in words is "twenty-eight million, nine hundred eighty-four thousand, nine hundred ninety-five".